<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!--Spring是父容器,SpringMVC是其子容器,
并且在Spring父容器中注册的Bean对于SpringMVC容器中是可见的,
而在SpringMVC容器中注册的Bean对于Spring父容器中是不可见的,
即:子容器可以看见父容器中的注册的Bean.-->
<!-- servletContext[JVM上的每个webapp都会有一个servletContext对象]
context-param是给servletContext对象传值的。
该sc对象方法有:sc.getAttributeNames();sc.getAttribute(name);sc.removeAttribute(name);
3.0之后又增加了一些方法如:sc.create[Web对象]()和·······sc.add[web对象]()
通过这个ServletContextListener来启动业务层模块的spring容器。所有监听器同步工作。-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring/dispatcher-servlet*.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<description>springmvc上下文初始化需要的配置文件所在位置</description>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/dispatcher-servlet.xml</param-value>
</init-param>
<!--我们让这个DispatcherServlet 最先加载-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>